Ellicott's Commentary for English Readers - Genesis 12:9
(9) Toward the south.—The Negeb, or dry land, so called because the soil being a soft white chalk, the rains sink through it, and even in the valleys run below the surface of the ground. Though treeless, it is still rich in flocks and herds, but the water has to be collected in tanks and cisterns (Conder, Tent Work, ii. 87). read more
Ellicott's Commentary for English Readers - Genesis 12:8
(8) He removed.—Broke up his encampment. No special reason for this need be sought; it was the usual condition of the nomad life, and Abram’s wealth in cattle would make frequent changes necessary. His first long halt was in the hill country between Beth-el and Hai, or rather Ai, as in Joshua 8:1-3. The numerous almond-trees, whence the former town took its early name of Luz, the remains of aqueducts and other works for irrigation, and the strength of the town of Ai in Joshua’s days bear... read more